Objective (1) non-metallic ore beneficiation is normally to obtain a product with some physical and chemical properties, rather than one or a few in order to obtain a useful element minerals.
(2) The non-metallic ore beneficiation process should maintain the crystal structure of useful minerals as much as possible so as not to affect their industrial use and use value.
(3) The calculation of non-metallic ore dressing index is generally based on the content of useful minerals, and the oxide grade and the recovery rate of useful minerals are often expressed in the form of oxides, rather than the content of certain elements in the mineral.
(4) Non-metallic ore beneficiation purification not only enriches useful minerals, removes harmful impurities, but also grinds and classifies products of different specifications.
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